Finding the Fourth Proportional to 8,762.76, 12,092.52 and 5,404.23

Step by Step Solution

1. Step 1: Write the proportion equation
   8,762.76 : 12,092.52 = 5,404.23 : x
2. Step 2: Convert to fraction form
   8,762.76/12,092.52 = 5,404.23/x
3. Step 3: Cross multiply
   8,762.76x = 12,092.52 × 5,404.23
4. Step 4: Simplify right side
   8,762.76x = 65,350,671.88
5. Step 5: Solve for x
   x = 65,350,671.88/8,762.76
6. Step 6: Final answer
   x = 7,457.78